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Eating out with a soy allergy

Soy is easy to spot in tofu and soy sauce and much harder to spot everywhere else: in bread, marinades, vegetable oil blends, mayonnaise, chocolate and countless processed ingredients restaurants buy in.

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What actually goes wrong

The obvious sources are East and Southeast Asian: soy sauce, miso, tofu, edamame, tempeh, teriyaki and hoisin. Those are easy to identify. The hard part is that soy appears in many processed ingredients — bread, buns, bouillon, salad dressings, mayonnaise, margarine, and soy lecithin in chocolate and baked goods.

Soybean oil is a special case. Highly refined soybean oil is often tolerated by people with soy allergy because the refining removes most of the protein, but cold-pressed or expeller-pressed soy oil is not, and allergists differ in their advice. This is a question for your own allergist.

Vegetarian and vegan restaurants are often harder rather than easier, because tofu, tempeh, soy milk and soy-based meat substitutes are central to many plant-based menus.

What to ask, and how

Which cuisines make this easier

How Savor Scout helps

Savor Scout reads menus and reviews for soy-free, allergy-aware and from-scratch kitchens, which narrows the field. Kitchens that cook from scratch are generally better able to tell you exactly what's in a dish.

What this does not do. Soy in bought-in breads, oils and sauces is not on any menu. Call ahead and ask specific questions.

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Cuisines worth reading up on

Mexican food, Indian food, Mediterranean food, steak

Situations where this comes up: where to eat with picky eaters, where to take the team for lunch, where to eat with a big group.

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